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Finding the Fourth Proportional to 363,959.10, 545,938.65 and 127,277.10

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Solution

The fourth proportional to 363,959.10, 545,938.65 and 127,277.10 is: 190,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,959.10 : 545,938.65 = 127,277.10 : x
  2. Step 2: Convert to fraction form
    363,959.10/545,938.65 = 127,277.10/x
  3. Step 3: Cross multiply
    363,959.10x = 545,938.65 × 127,277.10
  4. Step 4: Simplify right side
    363,959.10x = 69,485,488,149.92
  5. Step 5: Solve for x
    x = 69,485,488,149.92/363,959.10
  6. Step 6: Final answer
    x = 190,915.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.